Examples include Zhihu, a Quora-like service for China, and Diandian, a Tumblr-like blog hosting platform for China, started by high-profile Internet entrepreneur Jack Xu, notably the former CIO at XiaoNei (now Renren).

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Now traffic to two of the most popular blog-hosting sites, Blogger and WordPress, is stagnating, according to Nielsen, a media-research firm.

ECONOMIST: The evolving blogosphere

LinkedIn also is pushing into content by aggregating business news and hosting expert blog posts, to give professionals more reasons to linger on the site.

WSJ: LinkedIn: The Ugly Duckling of Social Media

Check out our blog on Startle.com to find out about The American Club hosting the Ryder Cup.

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